Home / 19,910.51-27,475.52-10,957.79

Finding the Fourth Proportional to 19,910.51, 27,475.52 and 10,957.79

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Solution

The fourth proportional to 19,910.51, 27,475.52 and 10,957.79 is: 15,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,910.51 : 27,475.52 = 10,957.79 : x
  2. Step 2: Convert to fraction form
    19,910.51/27,475.52 = 10,957.79/x
  3. Step 3: Cross multiply
    19,910.51x = 27,475.52 × 10,957.79
  4. Step 4: Simplify right side
    19,910.51x = 301,070,786.13
  5. Step 5: Solve for x
    x = 301,070,786.13/19,910.51
  6. Step 6: Final answer
    x = 15,121.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.